Device for the formation of a cigarette rod



July 2, 1940. P. J. HERRMANN 2,206,699

DEVICE FOR THE FORMATION OF A CIGARETTE ROD Filed Nov. 20. 1939 v v 29 2 3f 8a 7 F192 1311: 5a 9a mNeN-r om PAUL scum Ne; HERRMHN N QTYORNEY- must Serve first as an m bridge, d th as it leaves the groove I of wheel 3 must make 25 Patented July 2,1940 i 2,206,599

DEVICE FOR THE FORMATION OF A CIGARETTE ROD Paul Johanlllleshlerrinatln, Dresden, Germany, as-

signer to Johann Carl Miiller, doing business as Universelle C'igaretten-Maschinenfabrik J. (l. Mueller a 00., Dresden, Germany Application November 20,1939, Serial No. :305,215

In Germany October 12, 1938 1*C1aim. (01.131-66) l i l This invention relates to cigarette making ma- 23, passing over the roller 24 which conveys fihe chines, and more particularly to those in which a obacco rod to the c arette former 25, Which is rotating disc or wheel is provided-with a circumpplied w h p p 6 p in ve f v ferential groove, which; along part of. the circumthe iroller 27. The shafts 20c and Zia are supference, is covered by a moving bandor apron, ported by vertical plates 23 and 28a, in turn sup- 5 The invention has for its object to provide an. ported by the extension 29 of the frame (it of improved bridge between the rotating grooved the machine. By this mechanism the tobacco rod wheel and the known cigarette former, formed in the groove l of the drum 3 by the band Indevices, of this kind it is important that all B 1 by the paper 150 t e te 0 the tobacco or particles thereof, in the groove rod. The pa ts described are old.

l of the wheel, or upon the peripheral surfaces of Bridges to nv y the tobacco rod from the the wheel adjacent the groove, be entirely .redrum to the cigarette rod formerare also old. 1 moved therefrom soas to form part of the clan: p v d bridge comprises in p r w retterod as it enters the enveloping paper, members 7 and la which form the side walls 01" n For this purpose, the invention consists of a a to a co rod channel which is in eiiect a conbridge composed of a central member entering tihllation 0 the grOOVe i cf drum 3- The ends the groove and two other members, one at each 3 d 8a of these. channel members "I and Tia sidexof th central member hich are shaped which contact the peripheral surfaces 9 and 9a to scrape offthe tobacco adhering to the periphf t u 3 O either S de the ove I are eral surfaces of the wheel adjace'ntthe groove, hap c c m' e o fi urat on of the 20 and so constructing these members that they are Pe p a s 9 and 9a.

adjustable in respect to each other to compensate The Contact of the e including em e for the unequal wear'of the central member in l d hi w t the Wheel 3 While not actually relation to the adjacent members. These parts tahgchtialfis $11011 that the moving cigarette d also as efiicient tobacco removers and yet be mov- 5 a y slight change in d ect on as shown ably adjustable in respectto each other. Y in Figure e her ends of these members The invention will be more fully described herei and la are shap d i anczzleform w inafter, an b di t thereof shown i th is known and is notthe invention of this case. 30, drawing, and 1 be finally m Disposed betwecnthe two members i and la, 30 I th accompanying drawing which are spaced from each othera distance Figure-1 1s a, partial side iew partly in section, about equal to the Width Of the groove 5 in the of a wheel groove cigarette forming machine and drum 3, i a central member 5 wh ch has its end a cigarette former, and the improved bridge there- (5 S0 Shaped as to enter t e g oove l, and form betwe n; approximately tangential contact therewith. The 35 Figure 2 is a vertical section of Figure 1 taken e d 8, 3c 5 are 50 n ed d S ped onlline A-A of Figure 1; and a in order to remove all adheringtobacco particles Figure 3 is a plan view of the bridge. from i the surfaces of the groove and adjacent Figured is an enlarged vertical section of Figp riph ral surfa e f h rum, n o uide ure 1 taken on line 3-13 of Figure 1. l them so as to enable them to be moved with the 40 Similar characters of reference indicate corbacco rod to the cigarette rod former 25. responding parts throughout the various views. ese e Wear out q y, d to Over- Referring to the drawing, the known wheel or come this, the members l and la are provided drum 3 is provided-with a circumferential groove with downwardly extending lugs i2 and lilo hav- I, which, along a part of its circumference, is g their exterior ces facing interior shoulder 45 covered by a belt or band or apron 2. This band surfaces on a supporting extension l l of the frame 2 is pressed by the roller 2! against the peripheral 30. The cut out 3! has two parallel vertical walls surface of the drum 3, soas to cover the groove it which act as guide surfaces for the adjacent I, to forni in the groove l the cigarette rod. The des of e lugs 52 d. 6- he central mom hand 2 then passes over the end roller 2i, and her 5 has a depending lug l5 disposed between 50 returns over the drum to another roller (not the lugs I2 and Mia. The bottom surface of the shown). An adjustable scraper device 22 acts extensionsupport H is inclined, as shown in \upon the band 2 when it passes over the roller Figure 1,to permit the passage of the drum 3.

2i, and any particles of tobacco adhering to the When the central member 5, with its adjacent 55 band drop upon the tobacco rod or upon the belt members 7 and la, have been placed in proper 1 g n then a set screw l3 is'rotated in order to clamp position to have the ends 8 and 8 and 8a contact properly with the drum periphery and groove,

the lugs l2, l5 and Na to the guide surface Hi.

When, however, the ends 6 and 8 and 8a wear unequally, then the set screw i3 is unloosened,-

and the members 5, land 7a are longitudinally adjusted in respect to eachother, so that the contact again takes place, and the-set screw is again fastened to clamp the lugs I2, I21: and I5 tightly in position.

The improvement consists in making the central part 5 and adjacent parts i and let-separate from each other to enable them to be separately moved relative to the drum surface, and tobe longitudinally adjusted and fastened in position.

" within the principle of the invention described,

without departing from thesco'pe' of the subjoined claim. I

What I claim is:

In a device for forming cigarette rods, having a grooved drum tobacco rod former and a ciga rette rod former, an improvedbridge disposed between the tobacco rod former and the cigarette rod former, which consists of a central member for entering the groove of the drum of the tobacco rod former, and contacting with the walls of said groove,. two adjacent members for contacting withthe peripheral surfaces of the drum adjacent said groove, lugs on the bottom of said in respect to each other, when any of them be- 

